Mining-machine truck



ras raraaireric.

l Nits n. ravin, or COLUMBUS, omaasslelvon'ro THE JEFFREY MANUFACTURING COMPANY, OF COLUMBUS, OHIO, A CORPORATION OF OHIO.

. VMINING-MAmarina TRUCK.

'To all whom it may 'concern Be it known that l, NILs D.'LE\'IN, a citizen of the United States, residing at Columbus, in the county of Franklin and the State e of' Ohio,- have invented certain new and useful mprovements in Mining-Machine Trucks, of which the following,r is a specie fication, reference being had therein to the 'A accompanying drawing.

`an electric cable reel withv improved means for transmittingr'power from the motor of the mining machine upon the truck to the track wheels and to the cable reel; and to provide' improved means to control the n movements of the truck along -the tracks otthe mine. The foregoing objects, and others more or less ancillary to them, are attained in the structure set forth 1n the annexed specifications, references being had to then accompanying drawings of whichshown in Figure 1 is a plan view oi the structure embodying my invention.

Fig. 2 is a si le elevation of the-truck Fig. 1,'and of the mining iiiacliine (shown in dottedtlines) loaded thereon for Fig. y3 ris .a Aside -elevation of the truck Vshowing the machine skidways tilted to re- 4cei've the mining machine.

Fig; 4 is a plan View ofthe truckshowing '-the turntable rotated to the right, ashav- 'ing unloaded the miningmachine in that .direction.

Fig. 5 is a sectionv taken along the line Fig. 6 is a fragmentary detail of certain of the brake operating devices.'

Like numerals refer to similar parts in the several iigures. dThere are several typesgot mining machines in ase for the underciitting of coal to facilitate its being' broken down tot' removal from the reine.r One of the' moet common in Specification of 'Letters Patent.-

iaateiiiea' om. i, ieai.

Appncaaonaiea november 21, i916. seriali No. masse.

use at the present time comprises a base framez'adapted 'to slide over the iioor' of the mine from the forward end of which proiects aycutter arm havingr a cutter chain with renewable bits adapted to cut the coal. Such machines are usually provided with winding drums havingr ropes adapted to be anchored to suitable abutments, and in operation the machines are propelled and guided along: the face of the coal by the winding in and paying out of the rops. After the entire` length of the working face has been undercut it is desirable that the machine shall be loaded upon a truck and transported to another working place where it sha ll be unloaded and put to work with as little delay as possible.v

These mining machines are heavy Hand though narrow,`are relatively elongated, be-

' ing from ten totwelve vfeet in length. Thecutting apparatus projects forward from six to eight feet, and in the rear thereof are th'c motor or engine, and the 'gearing and shafting by which the operative parts are driven. I

'ln my present invention l have produced a truck having: a mainframe composed ot two longitudinal angle bars. 1- joined together-diy the cross members 2, 3 4' and 5.

To the longitudinal angle bars 1 are boltedv the' axle journalboxes and 7 in which are journaled the axles Sand 9.7.1 To these axles are attached the tracton'wheels 10 adapted to travel along; the rails il'of the tracks of the mine. Extendingr rearwardly from the truck frame is a platform '12 upon which the operator may ride whenthe machine is being transported from one working place to another. The axles 8 and 9 are coupled together by an endless chain' 13' which engages lthe sprocket wheels14 keyedto the axles.

Provision is made for the proper tensioning of the chain 1? in the adjiistability of the axle journal box 7 which iis movable longitudinally of the truckl frame under the control of the adjustingi screws 15. A sprocket wheel 16 attached to the axle 8 is connectible through a suitable endless driving chain -17 with the sprocket Wheel 18 ot the mining machine when'in position for traveling to supply power to propel the truck along the mine tracks. As; the connection betweenthe sprocket wheel 18 and thenotor. of the raining machine ie tally described in my cef pending p deflecting application, Serial No. 132,681, filed Nov. 21, 1916, it is not thought to be necessary to further describe it at this time.

Attached to the longitudinal angles l of the truck frame is a journal bearing 19 in which is journaled a short transverse shaft 2() having at its outer end a sprocket wheel 21 connected through an endless chain 22 with the sprocket Wheel 23 fixed to the axle 9. This chain is arranged to slidably engage the flanges of a guide casting 24 which isI ad'ustably attached to the truck frame to`a ord means for adjusting the tension of the chain 22. This adjusting member 24 serves the secondary purpose of the chain 22 to allow free movement of the rotatable part of the truck as will presently appear. l Mounted upon the inneil end of the shaft 20 is a sheave pulley 25 which is connectible to the said shaft by a jaw clutch member 26 in a manner common with such clutches. The sbeave pulley 25 is connected by an endless rope belt 27 to drive the sheave 28 attached to the side of the removable reel 29. The cable reel is adapted to wind the conductor cable 30' lthrough which electric currents may be supplied Jfrom `the wiring system of the vmines to actuate the motor of the mining machine. The cable reel 29 is mounted upon spindles which are journaled in the bearing boxes 31 carried by the U-shaped frame 32 the lower ends of which bear in notches of the angle bars 33 secured to the platform 12 of the truck. The Center of gravity of the reel 29 is disposed to one side of the pivotal support of the frame 32 so that a part of the weight of the cable reel 29 is carried by the rope 27 and a suicient tension ismaintained therein to properly drive the reel to'wind the cable 30. A plurality of notches are provided in thel angle irons 33 to allow a measure of adjustment of s'uch tension. One of the boxes 31 has .within it the mechanism for gathering the positive current from the positive conductor Lof the cable 29, and the other box is similarly adapted to collect current from the negative conductor of the cable 29. 34 is a flexible cable havingsuitable conductors to lead respectively from the terminals of the two boxes 31'to vthe corresponding terminals of the mining j machine motor.

Mounted upon the axle 9 is a brake drum 35`adapted to be gripped by the brake band 36 to retard the rotation of the axle and thereby retard the movement of the truck.

' The ends of the brake bands 36 are connected to the toggle 'lever 37 supported in the bracket 38 attached to the cross angle bar 3 of the truck frame. The-upstanding arm 39 of the toggle l'ever is connected through ythe brake rod 40 with the hand lever 41 vat the rear end of thetruck convenient to the hand oftheoperator toapply the brake to check the movement of the truck. The hand lever is `pivotally supported in the support casting 42 upon which is formed a notched arc 43 having notches adapted to engage the edge of the lever 41 to maintain tension upon the brake. Interposed between the arm 3 9 a-nd the brake rod 40 is a clevis 44 having a, compression spring 45 which contributes the degree of elasticity to the system necessary to the successful operation ofthe brake.

Attached to the cross members 3 and 4 of the truck frame is a plate 46 from which rises the pivot post 47, Rotatably mounted upon the pivot post is a center bearing 48 attached to the under side of the plate 49, forming a broad turn table which extends beyond and bears upon the edges of the upstanding flanges of the longitudinal angle bars 1. A bolt 50 passes through the plate 49, the center bearing 48 and the pivot post 47 to prevent the accidental disarran'gement of these parts. l Secured to the plate 49 at its forward corners are two trunnion bearings 51 in which are journaled .the trunnions 52 attached to the side angles 53 of the skid frame upon which the mining machinerides. The skid angles 53 are joined together attheir rearward ends by a cross plate 54 along the edge of which is secured the'stiffening angle 55, and at their forward ends by the cross plates 56 while" two intermediate T bars 57 and 58 give addtional rigidity to the structure. At 59, near their forward ends, the skid angles 53 are bent to flare outward forming afwide mouth to the frame to facilitate the entrance of the machine when loading. Plates 60 attached to the cross lmembers 56 and 58 afford 'a bottom over which the machine may slide. An upstanding bracket 61 hav-7 ing a notch 62 adapted to engage the handling rope of the mining machine to pull said machine onto the truck, is secured to the rear cross plate '54, and a latch member 63 "attached to the stifl'ening angle 55 is adapted to engage the aperturev64 of the plate 2 of the truck frame to prevent rotation of the turn table.-

The operation of the truck is as follows: The truck, with the mining machine 65 loaded upon it, advances along the tracks of the mine and enters the room with the cutter arm 66 of the mining machine in advance. l/Vhen it has arrived at the working place, the brake leverl 41 is manipulated to set the -braketo prevent the movement of the truck along the rails. The driving chain 17 is removed from thesprocket wheels 16 and 18, the latch 63 disengaged and the turn table rotated so that the. cutter arm 66 Willi extend toward the point at which the-` cfuj ting is to begin. The feed rope of t'lie-'rn'lnil ing machine lis then attached to the lug 67". formed of the projected epd ci ther-.ross

aseaes plate 56, and wound up to draw the mining machine tforward along the skids 53. As the center ot gravity of the mining machine passes forward ot' the trunnions 52 the skids 53 will tip to contact with'the floor ot' the mine. when the mining machine may be readily slid from the truck. I

After the completion ot' the cut the turn table is rotated to bring the` skid trame in line with the mining machine and the handliiig rope ot the mining machine is engaged in the notch 62 ot the bracket (il, The' rope is t-lie'n wound to draw the machine to and upon the skids 53. As the center ot' gravity ot the mining'machine passes to the rear of the trunnions 52, the skids 53 resume the horizontal position, the turn table is then rotated to the central position and the latch engaged. As the machine moves rearwardly upon the skids 53 the chain 17 is replaced upon' the sprocket. wheels 16 and18 'and as soon as the mining machine is in place the truck is ready to travel. j

The body trame in my construction is approximately ot the length ot' the mining machine. lt tilts from end to end, that is to say, that part ot' the body trame which lies -undei vthe mining machine. when the latter is in its rearmost position, tilts with the machine, all the parts ot the body being rigidly secured together. The devices tor vfastening the cable or equivalent by which the machine is drawn up on to the body trame are carried by the latter. so that they are iidy 'for use even when the body is turned to an angular position in relation to the truck trame.4

-It will be seen that they truck mechanism, as an entirety, can be regarded as comprising a rear section which includes a lower element (namely, the base trame on the axles and wheels) and an upper horizontally rotary element, together with a second seetion hinged to the rotary element and adapted to be inclined relatively to the truck.

The rotary part ot the mechanism` above described, is provided with two power trans mitting elements or abutments alternately co-acting with the power dew ice ol the inining. machine, one tor pulling the machine toriwird-and the other Jfor pulling it back-- ward to its transportation position. And all of these power devices tor moving the machine are on the horizontally rotary element oi the mechanism so that the machine can pull itself in either direction independently oi the power parts on the. base trame.

no matterwhat the angle ot' the body trame to the lines of the track.

lVhat I claim is: f f 1. In a truck tor holding and transporting an 'elongated mining machine of the class described, the combination with a wheelisup-v ported truck frame, of a body frame hinged vnally arranged guiding members adapted to engage said mining machine to guide it into traveling position upon Said truck, and to prevent its lateral displacement therefrom, said body trame wholly underlying said machine while in said position and arranged to tilt with said 4mining machine when its center ot gravity passes said hinge.

2. In a truck t'or Vholding and transporting an elongated mining machine of the class described, t-he combination with a wheel supported truck frame, ot' a body trame hinged to said truck -tramejand rhaving continuous longitudinal guides arranged to engage said miningvmachine to guide it into traveling position upon said truck, said body traine Wholly underlying said machine when in said position and beingarranged to tilt with said mining machine when its center ot gravity passes said hinge.

3. In av truck for holding and transporting an elongated mining machine ofthe class described, the combination ot a wheeled truck `frame, a relatively elongated vertically'tilting and'horizontally rotatable body trame of approximately the length ot the mining machine and rigid from end to end. said body Jframe being provided with devices Jfor longitudinally guiding a mining machine, While it is sliding endwise thereon.

4. In a truck tor holding and transporting an elongated mining machine ot the class described, thecombination of a wheel Sup ported truck frame, a horizontally swinging turntable upon the trame, and' a relatively nally arranged devices tor` retaining a mining machine in proper relative position whileI it is sliding endwise relatively to the body frame.

5. ln a truck tor holding and transporting an elongated mining machine of the class described, the combination oi' a wheel slipported truck trame, the horizontally rotating turn table upon the frame, a relatively elongated body trame provided with devices tor guiding and retaining a mining machine in place while it is` sliding endwise along lll'- said body trame, the latter being horizon tally hinged to the turn table, and means Jfor locking the body trarne against movementrelative to the truck trame.

6. In a truck tor holding and transporting an elongated mining machine of the` class described, the combination with a wheel supported truck trame, ot an elongated horizontally rotatable body frame provided with guiding and retaining devices adapted to positively engage with a. mining machine-and hold it in predetermined positions while it is sliding endwise on to or from said bodyl frame, and vhinging devices interposed between the body frame and the truck frame.

adapted to permit the body frame to tilt from end to end with the mining machine when the latter is in its rearmost position on the body frame, and when the body frame is in an angular position relative to the truck frame.

7. In a truck of the class described, the combination of a. truck body mounted upon wheel supported axles and adapted to receive a mining machine and support it for transportation, a conductor cable through which electric current may besupplied to the motor of the mining machine upon the truck, a cable reel adapted to wind the cable, means to transmit power from the motorvof the mining machine to the axles to propel the truck, and means to rotatively connect the axles with the cable reel to actuate it.

8. In a truck of the class described, the combination ot a substantially horizontal trame mounted upon the wheel supported axles, a body hinged to the frame adapted to be tilted to receive a mining machine and to -support said machine for transportation, means to transmit power from the motor of the mining machine upon the truck to the axles to propel the truck, a conductor cable through which electric current may be supplied to'the motor of the mining machine upon the truck, a cable reel adapted to Wind the cable and means to rotatively connect the axles with the cable reel to actuate it. l

9. In a truck of the class described, the combination of a substantially horizontal frame mounted upon wheel supported axles, a body pivotally mounted for horizontal rotation upon the frame and adapted when in any angular relation therewith to be tilted to receive a. mining machine, means to transmit power from the motor of the mining machine when in position for traveling to the axles of the truck, a conductor cable through which electric current may be supplied to the motor of the. mining machine upon the truck, a cable reel adapted to wind the cable and means to rotatively connect the axles with the cable reel to actuate it.

10. In a truck for holding and transporting an elongated lmining machine of the class described, the combination of the vwheeled truck frame, the elongated body frame arranged to be tilted to or from a horizontal position, and when in horizontal planes above the Wheeled truck to be rotated hori-l zontally, said body fra-me being elongated to 'be of a length approximately equal to that of a mining machine, and-mcans at the rear end of the tilting body frame for attaching 'a draft device to draw the mining machine upon it.

. 11. In an apparatus of the class described, the ,combination of a truck frame mounted Iupon supporting Wheels adapted to travel along the tracks of a mine, a tilting,r body '6E frame hinged to said truck frame Aand adapted to receive and support a mining machine, means to transmit power from the motor of the mining machine upon the tilt-l ing body frame to the axles of said wheels to propel the truck, and means upon the 7l'.- truck to control its movement .along said track.

12. In an apparatus of the class' described, the combination of the wheeled truck frame, the body frame above the truck frame and mounted thereon to rotate horizontally and to tilt vertically, means on the body frame for drawing the mining machine thereon while in any of several positions an lar to the position of the truck frame, an means on the truck frame for securing it against' movement.

13. In atruck' tor holding and transporting an elongated mining machine of the class described, the, combination with a wheel supported truck frame, of a horizontally rotatable support pivoted to said truck frame. a body frame attached to said support by a horizontal hin e and having continuoufwlongitudinal gui es arranged to engage si'd mining machine and guide itgto its normal traveling position upon the truck, and means to lock all three elements iitrayeling position.

14. In a truck for holding and transporting an elongated 'mining machine of the class described, the combination with a wheel supported truck frame, of a horizontally rotatable support pivoted to said truck frame; a body frame attached to said support by a horizontal 'hingeand having continuous longitudinal guides arranged to engage said mining machine tx) guide it to its normal position upon the truck said body frame being arranged to tilt with said min- 105 ing. machine when its center of gravity passses said hinge.

15. In 'a mining machine truck mechanism.,the combination with the truck Wheels, the base trame mounted thereon, and power transmitting devices mounted on said frame for rotating the truck wheels. of a body frame adapted to tilt vertically at its rear end and receive. and hold in transportation position thereon, an elongated longitudinally moving mining machine. said tilting frame being provided with power transmitting means 'adapted to co-act with power means on `the mining machine for longitudinally moving said machine along the tilting frame. independently of the base frame` when-the tilting frame is in any ofv severalpositions relatively to the base trame.v

1,55. In atruck for holding and transporting an elongated mining machine, the combination with a rigid truck frame supported on wheels adapted to travel over the mine tracks. of a supplemental elongated tiltable body frame with which the mining machine has lateral engagement and. which is adapt. iat' ed to support said machine in traveling position upon the truck or to guide it to or from positions on the mine floor at either side ot Said tracas. l

n e. truck for holding and transporting a mining machine ot' the class described. the combination with a rigid truck trarne Supported upon wheels adapted to travel over the mine tracks. of n supplemental elongated body frame adapted to support said mining maffhine in traveling position upon said truck, to he tilted to guide Asaid' nniohiile to or from the mine fioor. and to he horiz/.ontally rotated to deliver said mining machine to any preferred position relative to the longitudinal lines ot the tracks.

1S. ln :i truck mecnnnisin of the `Clase described. the combination of the rem' section. the Second section hinged thereto, the holder at the forward end of the second seetion Jfor separnbly connecting :l flexible drnt't deviee. and u supplemental holder on the rear seetion for sepnrnhly connecting send drott de vice the-reto.

l. En a truc-k mechanism ot 'the elass desorihed, the, Combination ot the, lirst seetion having n wheeled support und :in element rotatable horizontally on said support. und he Second section hinged to the first seetion and adapted to be positioned at. an inclinzrtion in relation thoreto, and to 'now its front end heur against the tloor` while the lond ie being inored over said end :ind niezins for loekingf the wheeled Support ngziinst longitudinal movement.

2o. in i trnek mechanism o'l` the class deJ serihed, the oonihination ol' the tirs section haringr u horixontnll;Y rotzxtiingr element. und the second seeion eonnerted to the sind element :1nd adopted to swing' downwnrd 'to have its 'front end hour npon the lioor when said seetion is in any ot' itsl nngnlnr positions and support one end ot' the load while the other end is being` supported on the zground` 2l. ln n trnel: nieehnninn ot tln` (dass de serilled, the eoinliinntion of the first seetion haring :i lower wheeled element, power Nllibl l). lll'vIN.

Vfitnessesz Dimmer T. llisnnn, HARRY C. DEAN. 

